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Finding the Third Proportional to 18,521 and 28,495

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Solution

The third proportional to 18,521 and 28,495 is: 43,840.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,521 : 28,495 = 28,495 : x
  2. Step 2: Convert to fraction form
    18,521/28,495 = 28,495/x
  3. Step 3: Cross multiply
    18,521x = 28,495 × 28,495
  4. Step 4: Simplify right side
    18,521x = 811,965,025
  5. Step 5: Solve for x
    x = 811,965,025/18,521
  6. Step 6: Final answer
    x = 43,840.24

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.